As the Russian invasion of Ukraine continues with civilian casualties mounting, there have been growing calls for a no-fly zone over Ukraine. However, Western leaders have so far refused to take this step, warning of potentially calamitous consequences.
Ukrainian President Volodymyr Zelensky has himself appealed to the Nato countries to establish a no-fly zone over his country, but Prime Minister Boris Johnson, US President Joe Biden and Nato secretary general Jens Stoltenberg have all ruled this option out.
Johnson was confronted by a Ukrainian journalist during his visit to Poland yesterday (March 1st), and was again forced to refuse her demand for a no-fly zone. But what is a no-fly zone - and why do Western leaders fear a no-fly zone in Ukraine could trigger World War Three?
